Relay 157 (same as Micronta 157, Alvin 1157, SIC 1570, Ricoh 157, Compass 1325)
Country of manufacture: Japan (Relay/Ricoh), Date of manufacture: ____
Overall length: 33.5 cm, Width: 4.7 cm, Weight: 135.7 gms
Materials: Celluloid laminate over bamboo, metal end braces, adjustable
Cursor: 3.4 X 5.8 X 1.0 cms; all plastic, adjustable; lines = single line front and back, scales annotated on cursor
Scales: 23, no extensions
Front: Sr, Sθ, P', P [ Q, CF, CI, C ] D, DF, LL2, LL3
Back: Sh2, Sh1, A [ B, K, Th, C ] D, Tr1, Tr2, db
Gauge Marks: [ π, C, e, C1, M, 785 ]
Condition: C2-C3 (Mint to very minimal signs of use)
Came with: Original brown leather case